| SMShelly Materials Plant #80 | Belle Center | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant #92 | Columbus | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant 93 | Hilliard | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant No 94 (0145000399) | Reynoldsburg | OH | — | ◇ UNVERIFIED |
| SSSheridan Sand & Gravel | Chicago | IL | — | ◇ UNVERIFIED |
 Sherman Industries | Montgomery | AL | — | ◇ UNVERIFIED |
| Sherman Industries Decatur Plant | Trinity | AL | — | ◇ UNVERIFIED |
| Sherman Industries INC. | Huntsville | AL | — | ◇ UNVERIFIED |
| Sherman Industries,inc. | Birmingham | AL | — | ◇ UNVERIFIED |
| Sherman Industries Inc.city Plant | Birmingham | AL | — | ◇ UNVERIFIED |
| Sherman Industries - Leeds Plant | Leeds | AL | — | ◇ UNVERIFIED |
| Sherman Industries LLC - Harpersville Plant | Harpersville | AL | — | ◇ UNVERIFIED |
| Sherman Industries LLC - Jasper Plant | Jasper | AL | — | ◇ UNVERIFIED |
| Sherman Industries - Montevallo Plant | Montevallo | AL | — | ◇ UNVERIFIED |
| SPSherman Plant | Sherman | TX | — | ◇ UNVERIFIED |
| STSherman Tarrant Plant | Birmingham | AL | — | ◇ UNVERIFIED |
| SBShort Brothers Construction INC | Marion | IL | — | ◇ UNVERIFIED |
| SASibley Aggregates - Nonmetallic | Belle Plaine | MN | — | ◇ UNVERIFIED |
| SCSiegrist Construction CO -del Camino Pit | Longmont | CO | — | ◇ UNVERIFIED |
| SFSierra Frac Sand LLC - Cedar Bluff Plant | Benton | LA | — | ◇ UNVERIFIED |
| SFSi Funeral Services | Shreveport | LA | — | ◇ UNVERIFIED |
| SCSika Corporation | Conyers | GA | — | ◇ UNVERIFIED |
| SCSil Crete INC @ South Plainfield Plant | South Plainfield | NJ | — | ◇ UNVERIFIED |
| SCSilicon Crystals, INC. | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| SBSilver Bros INC | Hoopeston | IL | — | ◇ UNVERIFIED |
| SCSilvi Concrete Block | Brick Town | NJ | — | ◇ UNVERIFIED |
| SCSilvi Concrete of Englishtown | Manalapan Twp | NJ | — | ◇ UNVERIFIED |
| SCSilvi Concrete of Woodbury | Woodbury City | NJ | — | ◇ UNVERIFIED |
| SVSimerly Vaults, INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| SCSimon Contractors | Scottsbluff | NE | — | ◇ UNVERIFIED |
| SCSimon Contractors - Bennett Ready-mix | Bennett | CO | — | ◇ UNVERIFIED |
| SCSimon Contractors Dba Ogallala Ready Mix | Ogallala | CO | — | ◇ UNVERIFIED |
| SCSimon Contractors INC | Scottsbluff | NE | — | ◇ UNVERIFIED |
| SCSimon Contractors - Portable Plant #1 | Cheyenne | CO | — | ◇ UNVERIFIED |
| SCSimpson County Ready Mix Concrete, Plant Number 6 | Magee | MS | — | ◇ UNVERIFIED |
| SMSite Masters Construction Inc, Hot Mix Plant 1 | Columbus | MS | — | ◇ UNVERIFIED |
| SPSite Prep INC of Nc | Orangeburg | SC | — | ◇ UNVERIFIED |
| S3Skanska - 3 Mile Bridge Pre-cast Facility | Pensacola | FL | — | ◇ UNVERIFIED |
| SUSkanska USA - Hma Plant | Cortez | CO | — | ◇ UNVERIFIED |
| SCSloan Construction:#16 | Cayce | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:anderson | Anderson | SC | — | ◇ UNVERIFIED |
| SCSloan Construction Co-forsyth | Winston Salem | NC | — | ◇ UNVERIFIED |
| SMSloan Midstate Asphalt Plant | Columbia | SC | — | ◇ UNVERIFIED |
| SLS L Williamson & CO - Red Hill | North Garden | VA | — | ◇ UNVERIFIED |
| SLS L Williamson & CO - Ruckersville | Ruckersville | VA | — | ◇ UNVERIFIED |
| SLS L Williamson & CO - Shadwell | Charlottesville | VA | — | ◇ UNVERIFIED |
| SCSmith - Carolina Corporation | Reidsville | NC | — | ◇ UNVERIFIED |
| SCSmith Concrete Cambridge 05452 | Cambridge | OH | — | ◇ UNVERIFIED |
| SCSmith Concrete Plant #05457 | Coshocton | OH | — | ◇ UNVERIFIED |
| SCSmith Concrete - Plant 465 Portable | Zanesville | OH | — | ◇ UNVERIFIED |
| SHSmithfield Hma | Smithfield | UT | — | ◇ UNVERIFIED |
| SRSmith's Ready Mix-nashville | Nashville | AR | — | ◇ UNVERIFIED |
| SCSmk C Rb Sug Sanders Et Al 18 #1 Facility | Haynesville | LA | — | ◇ UNVERIFIED |
| SLSm Lorusso & Sons | Walpole | MA | — | ◇ UNVERIFIED |
| SPSmokey Point Concrete | Arlington | WA | — | ◇ UNVERIFIED |
| SVSmoky Valley Concrete (portable) | Portable | KS | — | ◇ UNVERIFIED |
| SQSmyrna Quarry | Smyrna | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix | Lebanon | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix | Mount Juliet | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete | Lewisburg | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete | Fort Myers | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete/edgewater | Edgewater | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC | Hendersonville | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC | Leighton | AL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC | Heiskell | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC - Capital Ready Mix | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC - Highway 85 Ready | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC - Manchester Plant 16 | Manchester | TN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC Plant #212 | Aurora | IN | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC - Plant 222 | Danville | KY | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC Smr Plant #138 | Haines City | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC - Srm Plant #122 | Bartow | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC - Srm Plant #151 | Mulberry | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC - Srm Plant #155 | North Fort Myers | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC - Srm Plant #156 | Fort Myers | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete - Plant 2 | Ellabell | GA | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete Plant 254 | Mayfield | KY | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix LLC Plant 216 | Georgetown (scott) | KY | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Ocala Plant | Ocala | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Osage Portable Plant | Denver | CO | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Plant #102 | Midway | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Plant #106 | Carrabelle | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Plant #130 | Quincy | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Plant #146 | Blountstown | FL | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Summit View Ready Mix | Fort Collins | CO | — | ◇ UNVERIFIED |
| SESnell, E.r., Contractor, INC. | Buford | GA | — | ◇ UNVERIFIED |
| SRSoiland Resources LLC | Windsor | CA | — | ◇ UNVERIFIED |
| SRSoil Remediation INC | Kingsland | GA | — | ◇ UNVERIFIED |
| SSSoil Safe INC | Brandywine | MD | — | ◇ UNVERIFIED |
| STSoil Treatment Services, INC. | Kissimmee | FL | — | ◇ UNVERIFIED |
| SSoledad | Canyon Country | CA | — | ◇ UNVERIFIED |
| SRSolid Rock Ready Mix Site | Houston | TX | — | ◇ UNVERIFIED |
| SRSonag Ready Mix | Milwaukee | WI | — | ◇ UNVERIFIED |
| SCSouth Carolina Prestress CORP | Florence | SC | — | ◇ UNVERIFIED |
| SCSouth Central Concrete Benton Plant | Benton | AR | — | ◇ UNVERIFIED |
| SCSoutheast Cement - Savannah | Savannah | GA | — | ◇ UNVERIFIED |
| SESoutheast Emulsions – Perry Liquid Terminal | Perry | GA | — | ◇ UNVERIFIED |
| SCSoutheastern Concrete | Weymouth | MA | — | ◇ UNVERIFIED |
| SCSoutheastern Concrete Company Inc, Collins Facility | Collins | MS | — | ◇ UNVERIFIED |
| SCSoutheastern Concrete Company Inc, Plant Number 4 | Hattiesburg | MS | — | ◇ UNVERIFIED |
